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      1 /* $NetBSD: z8530var.h,v 1.4 2008/03/29 19:15:34 tsutsui Exp $ */
      2 
      3 #include <dev/ic/z8530sc.h>
      4 
      5 struct zsc_softc {
      6 	device_t zsc_dev;		/* required first: base device */
      7 	struct	zs_chanstate *zsc_cs[2];	/* channel A and B soft state */
      8 	/* Machine-dependent part follows... */
      9 	void	*zsc_softintr_cookie;
     10 };
     11 
     12 uint8_t zs_read_reg(struct zs_chanstate *cs, uint8_t reg);
     13 uint8_t zs_read_csr(struct zs_chanstate *cs);
     14 uint8_t zs_read_data(struct zs_chanstate *cs);
     15 
     16 void  zs_write_reg(struct zs_chanstate *cs, uint8_t reg, uint8_t val);
     17 void  zs_write_csr(struct zs_chanstate *cs, uint8_t val);
     18 void  zs_write_data(struct zs_chanstate *cs, uint8_t val);
     19 
     20 /* Interrupt priority for the SCC chip; needs to match ZSHARD_PRI. */
     21 #define splzs()		spl4()
     22 #define	IPL_ZS		IPL_HIGH
     23 
     24